The contract Nachbar signed appears to be part of a broader trend in the NBA, ESPN.com says.

Nachbar's deal follows a fast-developing worrisome trend for some NBA executives -- based in large part on the strength of the euro against the dollar -- of European-based teams being able to outbid their NBA counterparts for free agents.

[snip]

"The NBA had better be careful," Nachbar said. "European teams are offering a lot of money. It's much more, considering there are no taxes, than what I could make signing for the mid-level exception."

Nachbar's contract may include affordable buyout clauses that might allow Nachbar to return to the NBA, the ESPN report says.